CPT/HCPCS
84425
Order Code
CH432
Turnaround Time
72 hours
Specimen Requirements
Specimen Source
Plasma
Transport Container
(Specimen Container)
(Specimen Container)
EDTA (lavender-top) tube
Preferred Specimens
Light protected
Minimum Volume (uL)
2mL
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport Frozen
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | 8 hours |
| Refrigerated | 48 hours |
| Frozen | 30 days |
Reject Criteria
Hemolysis
Lipemia
Received room temperature
Received refrigerated
Received not protected from light
Special Instructions
Plasma: Collect blood in a lavender-top tube. Remove plasma within 4 hours of collection and transfer to a light protected pour off tube. If separation of cells can’t be performed immediately after collection, keep the whole blood refrigerated and protected from light. The separation of cells must be completed within 4 hours of collection. Separate cells by centrifugation at 2-8° C for 8-10 minutes. Transfer plasma to amber tube to protect from light and freeze tube immediately. Alternately, neutral colored tubes can be used if wrapped in aluminum foil. Ship frozen tubes at -10 to -30° C.
Test Details
Methodology
Chromatography/Mass Spectrometry
Reference Ranges
Adult 8-30 nmol/L
